Needle-guide for sewing-machines.



G. HOEPNER.

NEEDLE GUIDE FOR SEWING MACHINES.

APPLICATION FILED Aums. I917.

1,26 9,7 1 1 w Patented June 18, 1918.

UNITED STATES PATE T OFFICE.

GEORGE HOEPNER, 01E CHICAGO, ILLINOIS.

, NEEDLE-GUIDE FOR SEWING-MACHINES.

Specification of Letters IPatent.

Patented June 18, 1918.

Original application filed October 27, 1916, Serial No. 128,104. Divided and this application filed August 15,

1917. Serial No. 186,254.

To all whom it may concern:

Be it known that I, GEORGE HOEPNER, a citizen of the United States, residing at Chicago, county of Cook, State of Illinois, have invented a certain'new and useful Improvement in Needle-Guides for Sewing- Machines, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

In my application for sewing machme, filed October 27, 1916, Serial'No. 12s, 04., of which the present application is a d vision, I have illustrated a sewing machine adapted to sew bags or other heavy work and-provided with a looper which moves transversely of the needle and in close proximity thereto. It is important that the needle be kept in perfect alinement and be prevented from vibrating while the end of the looper is approaching it, since a failure of the needle to be properly alined or an undue vibration thereof would cause interference between it and the looper, resulting in defective work or even damage to the machine. The object of the present invention is to produce a simple and novel guide for a needle after it has passed through the work, whereby perfect alinement of the needle will be maintained and vibration or chattering be avoided.v

The various features of novelty whereby m invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a full understanding of my invention and of its object and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawing, wherein:

Figure 1 is a view partly in elevation and partly in section of a fragment of the sewing machine, illustrating the needle and my improved guide; and

Fig. 2 is a view partly in elevation and partly in section of the guide detached from the machine.

Referring to the drawing, 1 represents a reciprocatory needle in the path of which and in co-axlal alinement with which is fixed a small post or stud, 2. In the arrangement shown, the post or stud is screw threaded at its end farthest removed from the needle, as indicated at 3, the screw threaded part being screwed into a suitable part, 4, of the sewing machine frame.

In the free end of the post or stud there is an axially arranged hole or bore, 5, just large enough to receive the needle; the extreme outer end of the hole or bore being flared 0r enlarged as indicated at 6, to form a guide to deflect the point of the needle into the bore if it should happen to be a little out of alinement. Since the needle will carry more or less lint with it into the guide, I cut away, the upper portionof the latter for some distance betweenitlfe ends of the guide as indicated at 7; thus exposing the inner. end of the needle-receiving opening and permitting any lint which is carried into the opening to be pushed out ahead of the needle.

It will thus be seen that I have produced a simple and effective guide which will insure satisfactory alinement and freedom from vibration, without danger of becoming choked or clogged so as to interfere with the free operation of the needle.

I claim:

1. In a sewing machine, a work support, ai'eciprocable needle movable through said support from one side thereof, and a sta therefrom, said needle guide being constructed and arranged completely to surround the end of the needle.

2. In a sewing machine, a work support, a reciprocable needle adapted to move back and forth through said support from one side thereof, and a tubular needle guide mounted on the opposite side of and spaced apart from said support for receiving the end of the needle, the interior diameter of said needle guide being about the same as that of the needle.

3. In a sewing machine, a work sup ort, a reciprocable needleadapted to move ack and forth through said support from one side thereof, a stationary stud mounted on the opposite side of and at some distance from the support in alinement with the needle, said stud having a hole extending lengthwise of the same from the end next to the support. I

4'. In a. sewing machine, a work support,

a reciprooabie needle adapted to move back and forth through said support from one side thereof, a post mounted on the opposite side of and spaced apart from said support, said post having bored into the some a. hole of about the same diameter as the needle to be guided, the side of the post in the vicinity of the rear end of the hole being cut away to provide an outlet for lint or other foreign matter. 310

In testimony whereof I sign this specification.

GEORGE HOEPNER. 

